Bottle for corrosive liquids



0. C. SMITH BOTTLE FOR CORROSIVE LIQUIDS Filed Fb. 5, 1935 I I I I I I l I I I I I 1/ .271 en/6 r 075x720 63 Smith.

Patented Mar. 24, 1936 NITED STATES PATENT OFFICE 10 Claims.

This invention relates to bottles for corrosive liquids such as hydrofluoric acid, which, as is well known, can not be kept in an ordinary glass container because such acid attacks the glass.

It has been common in the past to put up hydrofluoric acid in bottles formed of either wax or hard rubber, which substances are not attacked by the acid. Difiiculty is encountered in handling Wax bottles, however, because of a liability to soften in a warm room, and rubber bottles are quite expensive. A glass bottle would be convenient to handle, as Well as being very inexpensive, but for the reason mentioned an ordinary simple glass bottle is impossible to use as a container for hydrofluoric acid.

It is therefore the primary object of the present invention to provide an inexpensive glass bottle which is fully protected against attack by such a liquid as hydrofluoric acid.

It is a further object of the invention to provide means for dispensing the liquid from such a bottle without permitting the liquid to come into contact with the glass of the bottle neck.

In accordance with the present invention I line an ordinary, relatively small-necked glass bottle with a substantial coating of wax, or other similar acid-resisting substance. This is accomplished by pouring melted wax into the bottle, and then emptying it out, taking care that all interior surfaces of the bottle are well coated with the wax. I then insert within the bottle neck a stopper-disk or plug, which is of a diameter such that it will just fit within the wax coating in the neck of the bottle. Additional melted wax is then poured in the bottle, over the top of the plug, and this additional wax fuses and forms a bond with the wax coating previously applied to the inner surfaces of the bottle, and also fills in around and over the plug, as well as over the upper end of the bottle neck. There is thus formed a liquid-tight wax enclosure, which coats the bottle interior, encloses the stopperdisk or plug, and also coats and protects the rim of the bottle around its mouth. The described wax lining and stopper plug forms, in effect, a complete wax bottle, which is completely reinforced on its exterior surfaces by the walls of the exterior glass bottle. When the liquid is to be dispensed, a small opening is forced through the center of the stopper disk, which may be done with any convenient instrument. The liquid discharged from this opening does not come into contact with the glass at the upper end of the bottle, which is protected by wax, as previously mentioned.

The invention will be more fully understood from the following description of present preferred embodiments of the invention, reference being had to the accompanying drawing, in which:

Fig. 1 is a longitudinal vertical section through my improved bottle;

Fig. 2 is a view showing the upper portion of the bottle of Fig. 1 after the same has been formed with a liquid dispensing opening; and

Fig. 3 shows a variational form of the invention.

In the drawing numeral I designates the body of a glass bottle, provided with a usual restricted neck II, and having a cylindrical bore Ila. The annular upper end of the bottle is designated by numeral I2.

I apply a wax coating or lining M to the entire interior surface of the bottle. This is done by pouring melted wax into the bottle, and. then pouring it out, after seeing that the entire interior surface of the bottle and its neck are well coated with the wax. If desired, this coating may be built up to substantial thickness simply by applying one or more additional coatings after the first has cooled. In the specification and claims I speak specifically of wax as the substance used to line the bottle; it is to be understood, however, that while wax constitutes a very desirable substance for the purpose, any suitable equivalent may be substituted, and any such equivalent is contemplated as coming within the scope of the appended claims in which wax is specifically recited.

A cylindrical stopper-disk or plug l5, which may be formed of cork, or any other suitable substance, is then inserted within the bore I la of the bottle neck. This disk fits within the wax lining previously formed in bottle-neck bore llw. Preferably, disk is forced down somewhat below the upper end of the bottle, as shown.

Additional melted wax is then poured in over the top of disk l5, and fuses and forms a bond with the wax lining I4 which already surrounds the disk and continues down to coat the entire interior of the bottle. The wax so added over the top of the plug is thus fused with and made an integral part of the wax lining I4 previously formed in the bottle, so that the Wax lining wall is absolutely liquid tight. This additional wax poured in over disk I5 fills in at I6, over the top of the disk, and also forms a protective coating I! over the mouth of the bottle. Wax coating I 1 is preferably extended a short distance down around the neck, by immersing the top of the bottle in melted wax after the wax I6 has cooled.

There is thus formed an enclosed wax lining, or complete inner wax bottle, which coats or covers the entire interior of the bottle, encloses the stopper, and forms a protective layer on the upper end of the glass bottle and around the upper portion of the neck being in substance a wax bottle completely reinforced. The described protective wax lining will be seen to form a liquidtight wax enclosure, which surrounds the stopper disk, the wax added after the stopper disk is inserted in the bottle neck completely joining or forming a bond with and becoming an integral part of the previously formed wax lining M. In effect, the container may be considered as a wax inner bottle completely enclosed and reinforced by a glass exterior bottle. It will be evident that the bottle may therefore be carried or packed in any position without danger of the contained liquid coming into contact with its glass surfaces. The expression glass is used only because it is the common form of bottle, but it is understood that an exterior bottle of any other suitable material may be used if desired.

The bottle is opened by puncturing one or more liquid passages l8 through the wax at [6 and on down through disk I5, using any tool convenient for the purpose. In order that the bottle may be opened in this manner, it is of course necessary that disk I5 be formed of some material that is easily punctured. Cork is found in practice to be suitable for this purpose. The liquid discharge passage being thus formed, the bottle may be inverted and shaken to cause the liquid to discharge. The upper end of the bottle being protected by wax at IT, there is no possibility of the liquid so discharged coming into contact with the glass.

The described bottle will be seen to be fully protected against attack by the contained liquid. The bottle may be packed in any position before being opened, and is protected against the liquid while the liquid is being emptied through its discharge passageway l 8. The stopper is firmly held in place and is not apt to become dislodged through accident, and the whole container is of a very substantial character as compared with the previously used hydrofluoric acid bottles composed of wax.

Fig. 3 shows another form of the invention. In this instance the bottle neck 20 is formed with an exterior screw-thread 2|, and the bottle is provided with a screw cap 22. The wax in this form covers the upper end 23 of the bottle, as shown, but does not extend around the outside of the neck.

In the form of bottle shown in Figs. 1 and 2, in which but a single liquid discharge opening is illustrated, the liquid must be shaken out. In the form of Fig. 3, the plug 25 is provided with a pair of liquid discharge tubes 26, which are formed of some acid resisting material such as celluloid or rubber. These tubes 26 are mounted in and pass entirely through the plug, and extend up through the wax 21 above. The tubes are originally filled with wax plugs 28, and when the bottle is to be opened, the plugs are simply punched down into the bottle, any convenient tool being used for such purpose. Two openings thus being provided, the liquid will pour freely from one, while air enters through the other to replace the discharged liquid. Of course, one such tube and plug may be utilized if a freely pouring discharge stream is not needed, and on the other hand, two openings may be punctured in the plug (after the described manner of opening the bottle of Figs. 1 and 2) to secure a freely pouring discharge stream, without use of the tubes. The bottle is of course easier to open whenever the tubes are employed, as it is somewhat easier to punch out a wax plug than to force a new opening down through the stopperdisk.

The bottle provided by the present invention has all of the advantages of either a wax or a hard rubber bottle, without the disadvantage of softness and lack of strength of the wax bottle and the high cost of the hard rubber bottle. The glass walls of the bottle are fully protected against the acid, and the bottle stands up adequately under all conditions of ordinary handling or use.

It is to be understood the drawing and description are to be considered merely as il1ustrative of and not restrictive on the claims appended hereto, since various changes in design may be made without departing from the spirit and scope of said claims.

I claim:

1. A container for corrosive liquids, comprising a glass bottle having a neck, a wax lining coating the entire interior of the bottle including the neck, a stopper-disk within the wax lining in the bottle neck, and a layer of wax over the top side of the stopper-disk integrally joining at the side of and above said disk with the wax lining that coats the interior of the bottle.

2. A container for corrosive liquids, comprising a glass bottle having a neck, a wax lining coating the entire interior of the bottle including the neck, a stopper-disk within the wax lining in the bottle neck, and additional wax sealing the stopper-disk in position and integrally joining at the side of and above said disk with the wax lining that coats the interior of the bottle.

3. A container for corrosive liquids, comprising a glass bottle having a neck, a wax lining coating the entire interior of the bottle including the neck, a stopper-disk within the wax lining in the bottle neck, and additional wax sealing the stopper-disk in position and coating the upper end of the bottle neck, said additional wax integrally joining at the side of and above said disk with the wax lining that coats the interior of the bottle.

4. A container for corrosive liquids, comprising a glass bottle having a neck, a wax lining coating the entire interior of the bottle including the neck, 'a stopper-disk within the wax lining in the bottle neck, and a layer of wax over the top side of the stopper-disk and coating the upper end of the bottle neck, said additional wax in tegrally joining at the side of and above said disk with the wax lining that coats the interior of the bottle.

5. A container for corrosive liquids, comprising a glass bottle having a neck, a wax lining coating the entire interior of the bottle including the neck, a stopper-disk within the wax lining in the bottle neck, and additional wax sealing the stopper-disk in position and coating the upper end of the bottle neck, said additional wax integrally joining at the side of and above said disk with the wax lining that coats the interior of the bottle, and there being a liquid passage formed in said stopper disk through which liquid may be discharged without coming into contact with glass surfaces of the bottle.

6. A container for corrosive liquids, comprising a glass bottle having a neck, a wax lining coating the entire interior of the bottle including the neck, a stopper-disk within the wax lining in the bottle neck, a layer of wax over the top side of the stopper-disk and integrally joining at the side of and above said disk with the wax lining that coats the interior of the bottle, a liquid discharge tube extending through the stopper-disk and the Wax coating above it, and a removable plug sealing said tube.

'7. A container for corrosive liquid, comprising a glass bottle having a neck, a wax lining coating the entire interior of the bottle including the neck, a stopper-disk within the wax lining in the bottle neck, additional wax sealing the stopper-disk in position and integrally joining at the side of and above said disk with the wax lining that coats the interior of the bottle, a liquid discharge tube mounted in and passing through said stopper-disk, and a removable plug sealing said tube.

8. A container for corrosive liquids, comprising a wax bottle having a neck, a closure plug sealed in the neck of said bottle, wax on the outer surface of said plug fused at the sides of the plug with the neck of the wax bottle and a complete glass bottle entirely enclosing and reinforcing all exterior walls of said wax bottle.

9. A container for corrosive liquids, comprising a reinforcing bottle, a lining of a homogeneous wax-like protective material coating the entire interior of the bottle, a stopper-disk within the protective lining in the upper end of the bottle, and additional a homogeneous wax-like protective material on the outer surface of the stopper-disk sealing the stopper-disk in position and integrally joining at the side of said disk with the protective material that coats the interior of the bottle.

10. A container for corrosive liquids, comprising a bottle of homogeneous corrosive resistant material, a closure plug sealed in the upper end of said bottle, additional corrosive resistant material on the outer surface of the closure plug and fused at the sides of the plug with the upper end of the corrosive resistant bottle, and a complete reinforcing bottle entirely enclosing and reinforcing all exterior walls of the corrosive resistant bottle.

ORSINO C. SMITH. 

